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Case Histories
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CASE HISTORY
Redevelopment of
United Airlines- LAX Terminals
Los Angeles, CA

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Deep Foundation Contractor:

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Working Description:

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Expansion of LAX Terminals 7 & 8

Los Angeles, CA

Hensel Phelps Construction Co.

Magco Drilling, Inc

Los Angeles World Airports

Jan. 2015 – December 2018

12.75 inch M‐Piles, 35 ft. depth

Soilmec R-930

With a price tag of more than half a billion dollars, United's LAX redevelopment project will refresh virtually all of its customer-facing space at the airport, featuring an expansion of Terminal 7. 

The plans for the redevelopment project required deep foundation support. M-Piles were chosen by the design team to support the terminal expansion and passenger boarding bridge foundations.

Prior to commencing production pile installation, M-Piles were tested to 450 kips in compression and 250 kips in tension. Subsurface soils at the site consist of dense to very dense silty sand and sand.

Production pile installation is taking place adjacent to active runways and terminal buildings. By choosing the M-Pile, all costs associated with drilling spoils management, noise and vibration concerns were eliminated. To date, this has helped to facilitate a production pile installation rate of 15 piles completed per shift.

CASE HISTORY
Improvement of
SE Water Pollution Control Plant
San Francisco, CA

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Working Description:

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Chemical System Upgrades

San Francisco, CA 

NTK Construction Inc.

Magco Drilling, Inc

San Francisco Public Utilities Commission

Spring 2014 – Summer 2015

12.75 inch M‐Piles, 60 ft. depth

Delmag RH-34

The San Francisco Public Utilities Commission determined that it was necessary to improve the reliability of aging facilities at their Southeast Water Treatment Plant. One way this task was accomplished was by replacing and relocating the chemical systems, and upgrading various mechanical systems.

Underlying the Southeast Plant is a layer of compressible marine clay to a depth of 35 feet below ground surface. Below this, intermixed layers of dense clayey sand and sand extend to depths of 130 feet. New structures and equipment installations were supported on a deep foundation system to mitigate issues related to settlement.

The deep foundation installation needed to be vibration free, and allow the plant to remain active twent-four hours-a-day & seven days-a-week. As had previously been done at this facility, M-Piles were chosen to support foundations for chemical storage tanks. Forty M-Piles, averaging sixty feet long, were founded in dense sand. An average of twenty M-Piles, were installed per shift. Production pile installation was completed in two work days.

CASE HISTORY
Expansion of
Mendota Substation
Fresno County, CA

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Deep Foundation Contractor:

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Mendota Substation

Fresno County, CA 

Global Tower Service, Inc.

Magco Drilling, Inc

Pacific Gas & Electric

12.75 inch M-Piles, 75ft. depth

SOILMEC R-930

Part of a larger substation expansion project across California’s Central Valley; which helped to enable PG&E to continue to provide safe, reliable, affordable and clean energy to their customers.

The facility expansion at the Mendota Substation required the installation of new telecommunication towers. Due to the highly compressible subsurface soils at the site; pile foundations were required for support of the towers. Multiple deep foundation systems were considered for use at the site. 

Safety, as well as, mitigation of noise and vibration during pile installation were the chief concerns on the project. Working at the substation also required the ability to install piles with limited access for equipment. 

To meet these requirements, M-Piles were chosen for support of the tower foundations. M-Piles were designed to gain capacity in friction, and were installed to a depth of 75’-0” through clay and alluvial soils.

CASE HISTORY
Campus Expansion of
Discovery Science Center
Santa Ana, CA

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Deep Foundation Contractor:

Owner:

Working Description:

Drilling Rig:

Expansion to Existing Museum Campus

Santa Ana, CA 

Driver SPG

Magco Drilling, Inc

Discovery Science Center

12.75 inch M‐Piles, 40 ft. depth

Delmag RH-26

The Discovery Science Center $22.5 million expansion, doubled the size of the Santa Ana facility and increased the number of educational programs offered to local students and teachers.

The expansion included building a 44,000 SF addition to the existing museum. Foundations for the new addition were supported on a total of 140 M‐Piles; installed to a depth of 40 feet.

Piles were tested to 500 kips in compression and 200 kips in tension, respectively.

Subsurface soils consisted of clayey sand and dense sand with gravel.

The museum campus was scheduled to remain active during construction. M‐Piles were chosen for this project to mitigate noise, vibration, and safety concerns associated with pile installation. Pile installation took place adjacent to the active main entrance of the museum. Pile installation was completed in 2 weeks; 15 M‐ Piles were installed per shift.

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